$OpenBSD: patch-base_process_process_iterator_openbsd_cc,v 1.2 2016/03/06 10:51:13 robert Exp $
--- base/process/process_iterator_openbsd.cc.orig.port	Thu Mar  3 09:49:21 2016
+++ base/process/process_iterator_openbsd.cc	Thu Mar  3 09:49:53 2016
@@ -6,6 +6,9 @@
 
 #include <errno.h>
 #include <stddef.h>
+#include <unistd.h>
+#include <sys/param.h>
+#include <sys/proc.h>
 #include <sys/sysctl.h>
 
 #include "base/logging.h"
